jQuery(function($){
	

	$('.collapse').on('show.bs.collapse', function (event) {
	  	var target = $(event.currentTarget);
	  	target.prev().addClass('focus');
	});
	$('.collapse').on('hide.bs.collapse', function (event) {
	  	var target = $(event.currentTarget);
	  	target.prev().removeClass('focus');
	});
});